Ten years ago, Earth underwent a dramatic transformation with the emergence of dungeons and terrifying creatures, threatening human existence. In this desperate hour, a select few humans discovered extraordinary abilities, collectively known as the STARS - Warriors, Mages, Assassins, Healers, and Tamers. Among them stood Shiro Shoto, a brilliant inventor who harnessed technology to bolster humanity's defenses. However, tragedy struck when Shiro was senselessly killed by the Nightfall Organization, and his beloved wife succumbed to a demonic seed, falling into a coma from which she never recovered.
Akira, their 17-year-old son, shielded from the harrowing events that befell his family, was consumed by a burning desire for vengeance. Determined to seek justice, he embarked on a treacherous path, confronting both the STARS and the Nightfall, inadvertently entangling himself in a web of secrets and conspiracies that stretched far beyond his wildest imagination. This journey, if successful, held the potential to reshape the world as he knew it.